berthon



(Model.) 2 Simmssheet 1.

P. BERTHON '8v A. DBBENOIT.

PISTON WATER METER 4 Patented M31. 23, 1886.

VIG.

winesses:

UNITED STATES- PATENT OFFICE.

PIERRE BERTHON AND AUGUSTE DEBENOIT, OF ST. ETIENNE, DEPARTMENT OFLOIRE, FRANCE.

PlsToN WATER-METER.

RLTECIFICATION forming part of Letters Patent No. 338,243, dated March23, 1886.

Application tiled April 17, 18S-i. Serial No. 128,333. 4 (Model.)

To all whom it may' concern:

Be it known that we, PIERRE BEETHON and AUGUsrE DEBENOIT, both citizensof the French Republic, and residents of St. Etienne, in the Departmentof. Loire and French Republic, have invented certain new and usefulImprovements in Vater-Meters, of which the following is a specification.

Our invention relates to improvements in water-meters in which thequantity of liquid passing the apparatus is measured and registered bymeans of a reciprocating piston, and the objects of our improvementsare, first, to reverse instantaneously the motion of the pis- J ton,and, second, to regulate the capacity of the apparatus. XVe attain theseobjects by the mechanism illustrated in the accompanying drawings, inwhich- Figure lis a side elevation, Fig. 2 a plan, and Fig. 3 a frontelevation, of our improved water-meter. Fig. 4 is a front view of themeasuring-cylinder, and Fig. 5 a vertical section at the line A B. Figs.6, 7, 8, 9, 9210, 10, and 1l show details, the latter six figures on anenlarged scale.

Similar letters refer to similar parts throughout the several views.

The apparatus is composed of three main parts: first, themeasuring-cylinder C, provided with inlets S' and T and outlets T' andU, Fig, 4; second, the distributing-box D, provided with four openings,s', t, t', and u, Fig. 5, which correspond with the above-mentionedinlets and outlets of the cylinder, and are opened and closedinstantaneously by the cock R; third, the lever E of the adjustablelength, Fig. 7, which allows the capacity of the apparatus to beregulated by limiting the length of the stroke of the piston.

Beside and parallel to the cylinder C is arranged abar, J, which isfastened to the crosshead of the piston-rod, and consequently it followsthe to-and-fro motion of the latter.

At the downwardly-bent arm on the rear end of the bar J is connected aweighted arm, L, pivoted on the pin K of the arm. The front end of thearm L is provided with a heartshaped weight, L',which is adapted to turnan incline, E, and to reverse the distributing-cock R at a certainmoment, as will be described hereinafter. This cock R is cylindricallyshaped, and is partly hollow and partly solid. The circumference of thesolid portion is partly cut out, so as to form passages R2 R3 for theeduction of the water-,while the hollow part F, communicating with theinduction pipe, is provided with a slot, S, for the induction of thewater to the cylinder.

The reversing-geai,\vhich is actuated by the weighted armL,consistsofthestationaryguidepiece N, the oscillating incline E, and thereversing-beam R', which is fastened to the key of the distributing-cockR. 4The roof-shaped guide-piece N serves to support and to elevate theheart-shaped weight L' onV the arm L during a certain part of the strokeof the piston, while the incline E is induced to swing around its pivot'I'. The distance of the point o' of the incline E may be varied togovern the length of the piston-stroke and the quantity of water to bemeasured,as the part o is provided with a slit engaging over the squarebushing Q of the bolt i and the set-screw P. The point o of thisregulating-incline is guided in a notch of the weighted hammer L', thusmaintaining the arm L in an elevated position until the weight or hammerL' has traveled up the iucline E and passed the point o' thereof, whenthe hammer L falls, striking the beam R', and thereby causes thereversing of the cock R. This oscillation of the incline E is limited bythe stops n and a.

Vhenthe reversing of the water-meter is in a position as illustrated byFigs. 1, 2, and 3, the apparatus works asfollows: The liquid enters intothe apparatus through the opening F of the cock R, passes the slot S,the openings s and S', and the channel H behind the piston, thus causingthe latter to move in the direction as indicated by the arrow. Thismotion of the piston-rod induces a corresponding motion of the arm L,which, being loose on its pivot K, is raised in consequence of theinclined surface X Y of the guide-piece N, and the tongue E is turnedinto the position X' Y' 9 In this position the weight L' of the arm Ltravels up the incline E till it reaches the point o', and then,dropping down, it turns the reversing-beam R' and the cock R, thuscausing the reversing of the apparatus. At this in- I stant the slot Sof the cock E has arrived at the induction-port tT. The eduction-port tT being closed and u U opened, the liquid quits the apparatus throughthe eduction-pipe D of the box D. This motion of thepiston is used toactuate the reversing-gear and to regulate automatically itsreciprocating motion. The disposition oi the four openings in thecylinder and the four corresponding ones in thedistributing-box,arranged by pairs above each other and communicating7respectively7 with the induction and eduction pipe,isto overcome theinconvenience arising from the same ports being used alternately asoutlet and inlet ports. 5

Fig. S of the drawings shows the position of the cock R, as it isrepresented in Fig. l-viz., when the reversing-beam It is in theinclination along X Y; but with the difference that the arm L afterdoing its work has brought the regulating-incline E to swing, the pointof' which supports the hammer L, which will drop down during theadvancing motion of the piston upon the arm of the reversing-beam R',thus causingthe latter to go into the position X Y, and thereby to turnthe distributingcock R, in order to reverse the motion of the piston.When the cock is turned to the inclination X Y, the openingS is incommunication with the channel t,and the channel sis closed,

while the triangular piece r bars the channel t and leaves open thechannel u.

' Having thus fully described our invention, what we desire to claim andsecure by Letters Patent is l. In Water-meters, the combination of thearm L, reciprocated by the motion ofthe piston, hammer L,regulating-incline E, and roofsliaped guide-piece N ,with thereversing-beam VR' and distributing-cock R, substantially as set forth.

2. In combination with a Water-meter having separated ports forinduction and eduction, the cylindrical distributing-cock R, composed ofa hollow part with the slot S to form the communication of the cylinderwith the induction-pipe, and a solid part with the passages R2 R3,arranged to form the communication of the cylinder with theeduction-pipe Within the box D, substantially as and for the purposespecified.

In testimony that We claim the foregoing as our invention we have signedour names, in presence of two Witnesses, this 4th day of March, 1884.

PIERRE BERTHON. AUGUSTE DEBENOIT. Witnesses:

EDMoND DELORME, EUGNE Rovnfr.

